mirror of
https://github.com/systemd/systemd.git
synced 2024-11-01 09:21:26 +03:00
fdbbee37d5
Docbook styles required those to be present, even though the templates that we use did not show those names anywhere. But something changed semi-recently (I would suspect docbook templates, but there was only a minor version bump in recent years, and the changelog does not suggest anything related), and builds now work without those entries. Let's drop this dead weight. Tested with F26-F29, debian unstable. $ perl -i -0pe 's/\s*<authorgroup>.*<.authorgroup>//gms' man/*xml
98 lines
3.8 KiB
XML
98 lines
3.8 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
|
|
<!--
|
|
SPDX-License-Identifier: LGPL-2.1+
|
|
-->
|
|
|
|
<refentry id="sd_id128_to_string" xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>sd_id128_to_string</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>sd_id128_to_string</refentrytitle>
|
|
<manvolnum>3</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>sd_id128_to_string</refname>
|
|
<refname>sd_id128_from_string</refname>
|
|
<refpurpose>Format or parse 128-bit IDs as strings</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<funcsynopsis>
|
|
<funcsynopsisinfo>#include <systemd/sd-id128.h></funcsynopsisinfo>
|
|
|
|
<funcprototype>
|
|
<funcdef>char *<function>sd_id128_to_string</function></funcdef>
|
|
<paramdef>sd_id128_t <parameter>id</parameter>, char <parameter>s</parameter>[33]</paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>int <function>sd_id128_from_string</function></funcdef>
|
|
<paramdef>const char *<parameter>s</parameter>, sd_id128_t *<parameter>ret</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para><function>sd_id128_to_string()</function> formats a 128-bit
|
|
ID as a character string. It expects the ID and a string array
|
|
capable of storing 33 characters. The ID will be formatted as 32
|
|
lowercase hexadecimal digits and be terminated by a
|
|
<constant>NUL</constant> byte.</para>
|
|
|
|
<para><function>sd_id128_from_string()</function> implements the reverse operation: it takes a 33 character string
|
|
with 32 hexadecimal digits (either lowercase or uppercase, terminated by <constant>NUL</constant>) and parses them
|
|
back into a 128-bit ID returned in <parameter>ret</parameter>. Alternatively, this call can also parse a
|
|
37-character string with a 128-bit ID formatted as RFC UUID. If <parameter>ret</parameter> is passed as NULL the
|
|
function will validate the passed ID string, but not actually return it in parsed form.</para>
|
|
|
|
<para>For more information about the <literal>sd_id128_t</literal>
|
|
type see
|
|
<citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
|
|
Note that these calls operate the same way on all architectures,
|
|
i.e. the results do not depend on endianness.</para>
|
|
|
|
<para>When formatting a 128-bit ID into a string, it is often
|
|
easier to use a format string for
|
|
<citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
|
|
This is easily done using the
|
|
<function>SD_ID128_FORMAT_STR</function> and
|
|
<function>SD_ID128_FORMAT_VAL()</function> macros. For more
|
|
information see
|
|
<citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Return Value</title>
|
|
|
|
<para><function>sd_id128_to_string()</function> always succeeds
|
|
and returns a pointer to the string array passed in.
|
|
<function>sd_id128_from_string</function> returns 0 on success, in
|
|
which case <parameter>ret</parameter> is filled in, or a negative
|
|
errno-style error code.</para>
|
|
</refsect1>
|
|
|
|
<xi:include href="libsystemd-pkgconfig.xml" />
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|